Heat register



FIG. 1 is a top view of the design;

FIG. 2 is a front elevation view of the design, the rear being a mirror image of that shown;

FIG. 3 is a side elevation view of the design, the opposite side being a mirror image of that shown;

FIG. 4 is a cross-sectional elevation view of the design, taken along the line 4--4 of FIG. 1;

FIG. 5 is a bottom view of the design; and,

FIG. 6 is a perspective view of the design. 

The ornamental design for a heat register, as shown and described. 